The Hellmann Lab at University of Dayton
The Hellmann Lab at University of Dayton
Exploring the underlying mechanisms of phenotypic plasticity
* Co-first authors, ^ mentored student
 Afseth C^, Shim A^, Anderson S^, Bell AM, Hellmann JK. 2022 Vertical transmission of horizontally acquired social information in sticklebacks: implications for transgenerational plasticity. Proc. R. Soc. B 289: 20220571.
 Hellmann JK, Carlson ER, Bell AM. 2021. The interplay between sperm-mediated and care-mediated paternal effects in threespined sticklebacks. Animal Behaviour.
 Chen E^, Zielinski C^, Deno J^, Singh R^, Bell AM, Hellmann JK. 2021. The specificity of sperm-mediated paternal effects in threespine sticklebacks. Behavioral Ecology and Sociobiology 75.
 Hellmann JK, Bukhari SA, Deno J^, Bell AM. 2020. Sex-specific plasticity across generations I: Maternal and paternal effects in sons and daughters. Journal of Animal Ecology 89: 2788-2799.
 Hellmann JK, Carlson ER, Bell AM. 2020. Sex-specific plasticity across generations II: grandpaternal effects are lineage- and sex-specific. Journal of Animal Ecology 89: 2800-2812.
 Hellmann JK, Stiver KA, Marsh-Rollo SE, Alonzo SH. 2020. Defense against outside competition is linked to cooperation and conflict in male-male partnerships in the ocellated wrasse. Behavioral Ecology 31: 432-439.
 Donelan SC*, Hellmann JK*, Bell AM, Luttbeg B, Orrock JL, Sheriff MJ, Sih A. 2020. Transgenerational plasticity in human-altered environments. Trends in Ecology and Evolution 35: 115-124.
 Bell AM*, Hellmann JK*. 2019. Transgenerational plasticity: mechanisms, evolution, and ecological significance. Annual Review of Ecology, Evolution, and Systematics 50: 97-118.
 Dellinger M^, Zhang W, Bell AM, Hellmann JK. 2018. Do male sticklebacks use visual and/or olfactory cues to assess a potential mate's history with predation risk? Animal Behaviour 145: 151-159
 Hellmann JK, Hamilton IM. 2018. Intragroup social dynamics vary with the presence of neighbors in a cooperatively breeding fish. Current Zoology, zoy025.
 Hellmann JK, Hamilton IM. 2018. Dominant and subordinate outside options alter help and eviction in a pay-to-stay negotiation model. Behavioral Ecology 29: 553-562.
 Sabol AC*^, Hellmann JK*, Gray SM, Hamilton IM. 2017. The role of ultraviolet coloration in intrasexual interactions in a colonial fish. Animal Behaviour 131: 99-106.
 Reddon AR, O’Connor CM, Nesjen E, Cameron J, Hellmann JK, Ligocki IY, Marsh-Rollo SE, Hamilton IM, Wylie D, Balshine S, Hurd P. 2017. Isotocin neuronal phenotypes differ among social systems in cichlid fishes. Royal Society Open Science.
 Hellmann JK, Sovic M, Gibbs, HL, Reddon AR, O’Connor CM, Ligocki IY, Marsh-Rollo SE, Balshine S, Hamilton IM. 2016. Within-group relatedness is correlated with colony-level social structure and reproductive sharing in a social fish. Molecular Ecology 25: 4001-4013.
 Reddon AR, O’Connor CM, Ligocki IY, Hellmann JK, Marsh-Rollo SE, Hamilton IM, Balshine S. 2016. No evidence for larger brains in cooperatively breeding fishes. Canadian Journal of Zoology 94: 373-378.
 Hellmann JK, Ligocki IY, O’Connor CM, Reddon AR, Farmer TM, Marsh-Rollo SE, Balshine S, Hamilton IM. 2016. The influence of status and the social environment on energy stores in a social fish. Journal of Fish Biology 88, 1321-1334.
 Ligocki IY, Reddon AR, Hellmann JK, O’Connor CM, Marsh-Rollo SE, Balshine S, Hamilton IM. 2015. Social status influences responses to unfamiliar conspecifics in a cooperatively breeding fish. Behaviour 152, 1821-1839.
 Ligocki IY, Earley RL, Hellmann JK, Hamilton IM. 2015. Variation in glucocorticoid levels in relation to direct and third-party interactions in a social cichlid fish. Physiology and Behavior 151, 386-394.
 O’Connor CM, Reddon AR, Ligocki IY, Hellmann JK, Garvy KA, Marsh-Rollo SE, Hamilton IM, Balshine S. 2015. Motivation but not body size influences territorial contest dynamics in a wild cichlid fish. Animal Behaviour 107, 19-29.
 Hellmann JK, Ligocki IY, O’Connor CM, Reddon AR, Garvy KA, Marsh-Rollo SE, Gibbs HL, Balshine S, Hamilton IM. 2015. Reproductive sharing in relation to group and colony-level attributes in a cooperatively breeding fish. Proceedings of the Royal Society: B 282, 20150954.
 Hellmann JK*, Reddon AR*, Ligocki IY, O’Connor CM, Garvy KA, Marsh-Rollo SE, Balshine S, Hamilton IM. 2015. Changes in submissive behaviour in response to social perturbation: Impacts of isotocin and the social landscape. Animal Behaviour 105, 55-62.
 Hellmann JK, O’Connor CM, Ligocki IY, Farmer TM, Arnold TJ^, Reddon AR, Garvy KA, Marsh-Rollo SE, Balshine S, Hamilton IM. 2015. Evidence for alternative male morphs in a Tanganyikan cichlid fish. Journal of Zoology 296, 116-123.
 Hellmann JK, Erikson J, Queenborough S. 2015. Evaluating macroinvertebrate community structure in the confluence of freestone and limestone streams. Journal of Limnology 74: 64-74.
 Garvy K, Hellmann JK, Ligocki IY, Reddon AR, Marsh-Rollo SE, Hamilton IM, Balshine S, O’Connor CM. 2015. Sex and social status affect territorial defense in a cooperatively breeding cichlid fish, Neolamprologus savoryi. Hydrobiologia 748: 75-85.
 Wilkenfeld DA*, Hellmann JK*. 2014. Understanding beyond grasping propositions: a study of chess and fish. Studies in History and Philosophy of Science 48: 46-51.
 O’Connor CM, Reddon AR, Marsh-Rollo SE, Hellmann JK, Ligocki IY, Hamilton IM, Balshine S. 2014. A comparative study of immune response and social system in Lamprologine cichlid fishes. Naturwissenschaften 101: 839-849.
 Hellmann JK, Hamilton IM. 2014. The presence and familiarity of neighbors influences defense against predators in a cooperatively breeding cichlid. Behavioral Ecology 25: 386-391.
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